1140747205 has 8 divisors (see below), whose sum is σ = 1474196472. Its totient is φ = 842397888.

The previous prime is 1140747163. The next prime is 1140747229. The reversal of 1140747205 is 5027470411.

It can be written as a sum of positive squares in 4 ways, for example, as 116683204 + 1024064001 = 10802^2 + 32001^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1140747205 - 2¹¹ = 1140745157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8774914 + ... + 8775043.

It is an arithmetic number, because the mean of its divisors is an integer number (184274559).

Almost surely, 2^1140747205 is an apocalyptic number.

It is an amenable number.

1140747205 is a deficient number, since it is larger than the sum of its proper divisors (333449267).

1140747205 is a wasteful number, since it uses less digits than its factorization.

1140747205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17549975.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1140747205 is about 33774.9493707985. The cubic root of 1140747205 is about 1044.8721118192.

The spelling of 1140747205 in words is "one billion, one hundred forty million, seven hundred forty-seven thousand, two hundred five".